Endocrinology Investigation and Management Flashcards
Investigations for hypothyroid disease
Thyroid function tests
Anti-TPO antibody
Hypothyroid management
Start levothyroxine at 25-50 micrograms daily.
Adjust dose every 4 weeks according to response.
Check TSH 2 months after any dose change.
Myxoedema coma management
ABCDE Passively rewarm Cardiac monitoring for arrhythmias Monitor UO, fluid balance, CVP, blood sugar, oxygenation. Broad spectrum antibiotics. Thyroxine and hydrocortisone.
Hyperthyroid investigations
Thyroid function tests
TRAb
Scintigraphy if antibody negative or suspected nodular disease.
Potentially thyroid ultrasound for nodule.
Thyroid storm management
Lugol's iodine Glucocorticoids PTU B-blockers Fluids Monitoring
Hyperthyroid management
- Medication: carbimazole (propylthiouracil in 1st trimester) and beta blockers for symptomatic relief.
- Radioiodine.
- Thyroidectomy.
Thyroid cancer investigations.
Ultrasound guided FNA
Maybe excision biopsy of lymph node
Management for papillary microcarcinoma, minimally invasive follicular carcinoma with capsular invasion only or AMES low risk?
Thyroid lobectomy with isthmusectomy.
Management for thyroid cancer with extra-thyroidal spread, mets, nodal involement or AMES high risk.
Sub-total or total thyroidectomy.
Investigation after sub-total or total thyroidectomy
Whole body iodine scanning.
Thyroid mets management
Thyroid remnant ablation (given radioactive iodine).
Investigations for hypercalcaemia of malignancy
Raised calcium and ALP
X-ray, CT, MRI
Isotope bone scan
Hypercalcaemia acute management
Rehydration with saline
Consider loop diuretics once rehydrated
Bisphosponates
Steroids occasionally used.
Investigation after diagnosis of primary hyperparathyroidism
Setamibi scan
Primary hyperparathyroidism management
Surgery
Cinacalcet (calcium mimetic, useful if unfit for surgery)
Indications for parathyroidectomy
End organ damage (bones, gastric ulcers, renal stones, osteoporosis)
Very high calcium
Under 50
eGFR <60ml/min
Familial hypocalciuric hypercalcaemia management
Nothing, it will not cause any problems
Acute hypocalcaemia management
Emergency: IV calcium gluconate
Calcium gluconate infusion.
Hypoparathyroidism long term management
Calcium supplement
Vit D supplement (alphacalcidol)
Pseudohypoparathyroidism biochemical findings
Low calcium
PTH elevated
Pseudohypoparathyroidism management
Same as primary hypoparathyroidism
Chronic rickets/osteomalacia treatment
Vitamin D3 tablet (calcitriol, alfacalcidol)
Combined calcium and vit D.
Vit D resistant rickets treatment
Phosphate and vit D supplements
Maybe surgery